There was a fantastic Baseball Digest article i remember from my youth that described the baseball personality types. The 3B was described as born commandos who volunteer for the dangerous missions and live on adrenaline.
I would love to find that in an article somewhere. The descriptions of the other positions were great as well.
Pitchers were sadists, SS and CF were the kid who dated cheerleaders and LF were jealous of the SS and CF but just a bit too lazy to be that.